Plant tray



FIG. 1 is a front perspective view of a plant tray showing our new design;

FIG. 2 is a bottom front perspective view thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a left side elevation thereof; and,

FIG. 5 is a right side elevation thereof.

In the drawings, the broken lines depict unclaimed subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a plant tray, as shown and described. 